2015 Heater Problems - Dodge Cummins Diesel Forum
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post #1 of 4 (permalink) Old 11-13-2019, 08:59 PM Thread Starter
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2015 Heater Problems

2015 ram 2500 CCSB 6.7 68rfe
Started having trouble about a week ago no heat coming home from work, 11 hour drive, took nearly three hours to warm up where I wasn’t freezing, seemed to work fine after that no problems till last couple of days, it’s been fairly cold here.
Heat works fine on passenger side and barely at all on driver side.
Pulled glove box, cubby box and checked all actuators that are visible and pulled them and checked their operation and seemed fine as the doors seemed to shut good I could hear them as I moved them. Now it seems to barely blow air out at all on driver side still have some of the dash and console apart currently.
I checked the temp of the heater hoses and the truck wasn’t up to temp this morning but with a digital gauge it showed 154 goin in and 124 coming out.
I went to the dealer today and had them scan the truck and no codes came up, he said more than likely a blend door and quoted me $1100 is a typical starting point
I haven’t flushed the heater core yet.

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post #2 of 4 (permalink) Old 11-13-2019, 09:36 PM
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Well, if it is a matter of air blowing on one side, but not the other then it almost has to be the blend doors, unless there is a rats nest or something blocking the duct.

2015 RAM 2500 LoneStar Mega Cab CTD 2WD Air Ride PRAIRIE PEARLCOAT 02/09/2015
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post #3 of 4 (permalink) Old 11-13-2019, 10:07 PM
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You need a scan tool to read duct outlet temps and actuator positions, first!
Dealers won't help unless you're willing to spend way to much $$$$$$$$$$.

2016 Laramie 2500 CC 4X4 6.7L CUMMINS
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post #4 of 4 (permalink) Old 11-13-2019, 11:27 PM Thread Starter
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The dealer never said anything about that, doesn't the truck do a diagnostic run during start up on the actuators?
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